Agathis australis, commonly known as the Kauri tree, is a large conifer native to New Zealand. It can grow up to 50 meters tall and has a distinctive straight trunk with thick, flaky bark. The tree produces large, round cones and has needle-like leaves that are dark green and glossy. Kauri trees are significant in their ecosystem, providing habitat for various species. They are also valued for their timber, which is durable and resistant to decay. However, Agathis australis faces threats from diseases like Kauri dieback, which has led to conservation efforts to protect these iconic trees.